Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.
Lookmark - Track updates from the apps you've bookmarked on iTunes